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How many electrons are present in the atom with its 1s,2s,2p, and 3s subshells filled with 4 electrons in the 3p subshell? what is the element?
2.00 x102 ml of .744 m hcl is mixed with 2.00 x 102 ml of .372 m baoh2. how many moles of water are produced in the
hydrogen bromide can be produced by a reaction among bromine sulfer dioxide and water as follows...nbspnbsps02 br2 h2o
calculate the moles of solute needed to prepare each of the following 3.5l of a 1.4m cacl2 solution 4.5l of a 0.10m
Tetraphosphorus decaoxide reacts with water to form phosphoric acid, a major industrial acid. In the laboratory, the oxide is used as a drying agent.
determine what would be its temperature after absorption of 9.4 10-2 kwh of heat if 1.45 l of water is initially at
5.00g of Mg was reacted completely with Cl2 to form MgCl2 and 63.0kJ of heat was evolved. what is the molar enthalpy of formation of MgCl2?
weak acid in water with a Ka of 4.0x10^-4. Write the equilibrium constant expression for this acid. ( Ka)
can someone please help explain why the negative slope of thesolid liquid line in the h2o phase diagram is unique?
At certain temperature, Kc for the reaction, PCL5->
Use this equation Keq= [FeSCN^2+]/[Fe^3+][SCN^-] to calculate the concentration of Fe^3+ and SCN^- in a solution that has an equilibrium FeSCN^2+ concentration of 4.5 x10^-5 M.
The amino acid L-histidine has three acid-base equilibria, with pKa values of 1.78, 5.97, and 8.97. Plot the fraction of solute species present in solution in the pH range 0 to 14.
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no reaction occurs
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